mirror of
https://github.com/yunionio/cloudpods.git
synced 2026-05-10 15:53:11 +08:00
101 lines
2.5 KiB
Go
101 lines
2.5 KiB
Go
// Copyright 2019 Yunion
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package service
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import (
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"fmt"
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"os"
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"path/filepath"
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"strconv"
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"syscall"
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"yunion.io/x/log"
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"yunion.io/x/pkg/util/signalutils"
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"yunion.io/x/pkg/utils"
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"yunion.io/x/onecloud/pkg/cloudcommon/options"
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"yunion.io/x/onecloud/pkg/util/fileutils2"
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"yunion.io/x/onecloud/pkg/util/procutils"
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)
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type IService interface {
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InitService()
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RunService()
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OnExitService()
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}
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type SServiceBase struct {
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Service IService
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O *options.BaseOptions
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}
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func NewBaseService(service IService) *SServiceBase {
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return &SServiceBase{Service: service}
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}
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func (s *SServiceBase) StartService() {
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defer s.Service.OnExitService()
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defer s.RemovePid()
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s.Service.InitService()
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if err := s.CreatePid(); err != nil {
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log.Fatalln(err)
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}
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s.Service.RunService()
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}
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func (s *SServiceBase) CreatePid() error {
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if s.O == nil || len(s.O.PidFile) == 0 {
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return nil
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}
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absPath, err := filepath.Abs(s.O.PidFile)
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if err != nil {
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return fmt.Errorf("Get pidfile %s absolute path failed: %s", s.O.PidFile, err)
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}
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s.O.PidFile = absPath
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pidDir := filepath.Dir(s.O.PidFile)
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if !fileutils2.Exists(pidDir) {
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output, err := procutils.NewCommand("mkdir", "-p", pidDir).Output()
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if err != nil {
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return fmt.Errorf("Make pid dir %s failed: %s", pidDir, output)
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}
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}
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err = fileutils2.FilePutContents(s.O.PidFile, strconv.Itoa(os.Getpid()), false)
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if err != nil {
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return fmt.Errorf("Write pidfile %s failed: %s", s.O.PidFile, err)
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}
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return nil
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}
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func (s *SServiceBase) RemovePid() {
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if s.O != nil && len(s.O.PidFile) > 0 && fileutils2.Exists(s.O.PidFile) {
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os.Remove(s.O.PidFile)
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}
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}
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func (s *SServiceBase) SignalTrap(onExit func()) {
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// dump goroutine stack
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signalutils.RegisterSignal(func() {
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utils.DumpAllGoroutineStack(log.Logger().Out)
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}, syscall.SIGUSR1)
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if onExit != nil {
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quitSignals := []os.Signal{syscall.SIGHUP, syscall.SIGINT, syscall.SIGQUIT, syscall.SIGTERM}
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signalutils.RegisterSignal(onExit, quitSignals...)
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}
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signalutils.StartTrap()
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}
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